9 per cent of all patients with female sterility are indicated to be operated on. After discussing the conditions for microsurgery the indications like salpingolysis, ovariolysis, fimbrioplasty, salpingoneostomia, anastomosis, conservative operations of ectopic pregnancy and endometriosis are argued in detail. Microsurgery improves pregnancy rates about 20 per cent. The principles of microsurgery should have a wider entrance in gynecologic operations.